The top 10 gas grills between the price of $500 and $1,000 on the market. If you are looking to purchase a new grill in this price range (based on manufacturer's suggested retail price) then these are the ones you should be looking at. These Gas Grills put out plenty of heat, are built solid and have all the versatility you want. This quick review of Gas Grills should help you get started.
For more advice on gas grills in this price range see my Gas Grills between $500 and $1500 Buyer's Guide.

Weber-Stephen Products Co.Simply put the Weber Genesis line of grills are the best you can buy in this price range and beyond. The list price is $949USD but you can typically find it for around $800USD. What you get with the E-330 is a three burner grill (available in three colors), a 12,000 BTU side burner, and a 10,000 BTU internally mounted sear burner. Other models in this series come without the side burner or the sear burner. You decide which configuration works for you and buy only what you need.

Onward Manufacturing CompanyBroil-King makes grills that cook and cook hot. This unit has some very impressive features, including a full rotisserie system and the revolutionary Dual-Tube stainless steel burners. At around $800USD this full feature grill is expensive but it certainly can cook. The quality of this grill is exceptional and it will last for many years, but you have to factor in the price. This is definitely one of the best gas grills on the market.

Napoleon GrillsThe Ultra Chef line from Napoleon is their entry level grills. Available in a number of configurations and mountings, this version, the U405 is their basic model. This is a no frills grill that has excellent heat output and cooking characteristics. The porcelain coated cast iron cooking grates hold heat and give you great contact with food for searing and high temperature cooking. With the 3-burner design and highly adjustable heat output this grill can do all your basic grilling tasks with ease. Since this grill is made by Napoleon (in Canada) it has a lot to back it up.

The Holland Grill Co.The Holland Grill is a truly unique gas grill. This model, the Heritage Plus, is the bottom line product from Holland. To understand how different this grill is let me tell you that it has 330 square inches of cooking space, a single 19,500 BTU burner, a completely isolated cooking chamber, and a pair of smoke stacks on top. People who have owned this grill over the past two decades are dedicated fans that refuse to switch to a more conventional gas grill. On the other hand I know people who have found its unique and versatile cooking system difficult to get used to. Either way, this is a very well built grill.

Weber-Stephen Products Co.This is a basic 4-burner gas grill for around $530. While there are many similar grills, or even grills with more extras this is the cheapest grill you can get made by Weber. This means a good design, with great support, and pretty good longevity for a moderate price. If quality is a serious issue with you, but you can't afford to spend more then this is a grill you should take a serious look at (if you can find one). Yes, there have been some cutbacks in materials to deliver this grill for the price, but the internal components are still good quality and designed to last longer than other, fancier grills.

Napoleon GrillsNapoleon gas grills are amongst the best you can buy, but they tend to be expensive. The Mirage line is Napoleon's more affordable collection of gas grills, and this one, the M485RB, is the most basic and least expensive yet it still lists for nearly $900USD. That makes it more expensive than comparable Weber or Broil-King grills. This gas grill is a 3-burner unit with an infrared rotisserie burner (but the rotisserie kit is extra but a dealer might cut you a deal).

Char-Broil LLC.For 2011, Char-Broil has made some design changes to its RED line of infrared grills, largely to address the long preheat times that this grill suffered from. The boosted output of the main burners will heat the grill faster. However, this still leaves the problem of the central component, the infrared U-emitter, not being able to take the heat. While this grill can produce some impressive heat and grill up some great steaks, issues with design and the quality of components limit its lifespan. I just want you to be prepared for that.

Weber-Stephen Products CompanyThis Weber Spirit Gas Grill, the S-320, is configured exclusively for Home Depot. The only difference between this grill and the E-320 is that this one has porcelain coated cast iron cooking grates and a stainless steel hood insert (between the cast aluminum endcaps). The S-320 sells for $579USD making it $70 less than the list price of the E-320 (which can be had on sale for as low as $549). The stainless steel hood piece is merely decorative, but the cast iron cooking grates improve the cooking characteristics of this grill, making this version the better choice of the Spirit E-Series grills.

Onward Manufacturing CompanyIf you are serious about grilling and want a grill that delivers both high, even heat and gives you a lot of control then this is a great grill for you. It might not look modern but Broil King has been making great grills for years. This model will give you plenty of space at 300 square inches or primary cooking area and a total of 500 square inches.

Napoleon GrillsThis is a basic, relatively expensive gas grill similar in many ways to the Weber Genesis. Manufactured in Canada by Napoleon this is a high quality grill that is built to last and grill with a high, even heat. What you don't get with this grill is a lot of extras (unless you want to pay for them), but you do get a grill that you can count on due to superior engineering and solid components. If you are willing to sacrifice fancy for quality then this is definitely a gas grill to look at.